Originally Posted by
scottishpoet
and that juicy fare may not even be in the CW cabin, it could be they believe they can sell a juicy fare in Y and roll forward op ups to WT + and CW and prefer that to open an award ticket in J. You also need to consider how busy other cabins are, not just J
This is very true. I've seen massively oversold Y cabins and a tsunami of upgrades through the plane. It is all very route, date, time, season, plane type dependent, along with the fuzzy logic that is built in.